Process of producing receptacles



April 14, 1925. y

, y R. P. PERRYv rnocss oF PRDUGINGv RECEQTJACLES INVNTOR ATTORNEY Patented pr, 14, 1925.

l -1,533,606 PATENT oFFicE.-

RAY I?. PERRY, 01? UPPER MONTOLAIR, NEW JERSEY.

:PROCESS OF PRODUCING RECEPTACLES.

Application filed December 16', 1920. Serial No. 431,099.

To all whom t may conce/ML: t Be it known that l, RAY PERRY, a citizen of the United States, residing at Upper Montclair, in the county of Essex and State oi New Jersey, have invented certain new and useful Improvements in Processes of Producing Receptacles, of which thel ollowing is a specification.

This invention relates to a process for forming receptacles from sheets containing librous material and waterproofing material, and tothe product thereby1 formed. t

One of the. objects of t is'invention 1s to provide a receptacle of'this character that shallbe impervious to water, .shall be capable of withstanding mechanical stress or i strain, shall possess good Wearing qualities,

and shall present a pleasing appearance. Another object is to produce a receptacle in which the fibers are somewhat aligned and the bottom and sides of the receptacle are firml united into a .substantially inteffral an homogeneous article.

dln practicing this'invention I prepare a sheet of'material in an ordinary paper-making machine, which sheet contains fibrous material, such as paper-makingr stock, and waterprooling material.' This sheet is wrapped or wound around a former to constitute the sides of the receptacle, and disks are cut from the sheet to form. the bottom of thesame. The sides and bottom of the receptacle are firmly united' by the application-'of the proper amount of heat and pressure.

The invention will be understood from vthe description `in` connection With the dra-wings,

Fig. 1 is a side elevation indicating .so-mewhat diagrammatically apparatus Vfor formino' vthe sheet.

ig. 2. is a side view partly in section showing a press for the receptacle.

i cylinder`2, upon which the sheet 3 is formed in the usual way.. A batch of fibrous paper stock and comminuted waterproofing material is introduced into the vat 1, and a sheet 3 is formed 'thereroir'i on the cylinder 2 and" icked up by means of the wet blanket .4,-wiich passesover rolls 5 and 6.- The isheetl may be passed between the rolls 6 which it is"` rolledupon aformer 8 into a number of convolutions 9 suiiicient to form the sides of the receptacle,whereupon the sheet 3 is severed. The sheet is preferably wound up in a lwet condition, whereupon the fibers along adjacent surfaces will felt or mat to produce an initialjoining of the successive convolutions.

A number of disks 10 having diameters equal to the outside diameter' of the convolutions 9 are cut from the sheet 3 and supe-rposed upon each other to provide 'a disk of suiicient thickness to constitute the bottom of the receptacle.' A

The plurality of disks 10 are placed in the and 7 to remove a portion of the water, after A9 is placed upon the disks 10 with the end 9 of the convolutions in contact with the circumferential edge of thev to one of the ldisks 10. .If necessary, a small amount'or thin layer of bituminous material may be appliedlbetween the disks 10 and the end 9. The convolutions 9 fit' closely within the opening 11, and the metal cylinder? 13 fits closely the inside .of the convolutions 9;

A pressure member 14 operated by the plunger 15 fits around the cylinder' 13 and is capable of passin inside of the opening 11` of the Abase 12. he base 12 is rovided With a heating chamber 16 into which heating and vcooling fluids may be 'introduced Aand withdrawn through the pipes 17 and 18, and the cylinder 13 is similarly provided 'with a heating chamber 19 into which heating and cooling {iuidsmay be introduced and A withdrawn through the pipes 20 and 21'. A

p proper time.'

The operation of the press shown in 2 is as follows:A

The receptacle, consisting of the plurality of disks 10 and the convolutions 9, is inserted in the opening 11, and the cylinder v13 is inserted inside the convolutions 9. y The receptacle is heated suflicientlylto melt the waterprooting material by introducing heating fluid into the heating chambers 16 and 19. The pressure member 14 is then caused i to descend and compress the convolutions 94 in a `vertical direction orlongitudinally ot the axis of thereceptacle. The .plunger 15 slides in the space between the cylinder 13 and opening.l 11, and when the convolutions 9' have been compressed approximately to the desired extent, the plate 22 contacts with the upper endiof the cylinder 13, thereby applying pressure to 'said cylinder and cans# lng the same to compress the ,disks 1() to the desired extent. .The melted bituminous ma` terial spreads uniformly,- and theA convolutionsand disksare firmly united into a substantially integralV and homogeneous product. The heating fiuid is Withdrawn from the chambers 16 and 19and cooling fluid is introduced therein, whereupon the waterproofing material is caused tov set, thus causing the receptacle tov becomerigid and retain its shape. The pressure memberl 14 and the cylinder. 13 can be WithdraWn,-after which the integral receptacle' can be taken out of the opening 11.4 In the modification shown in Fig. 3 the opening 11 of the base 12 is made in the `shape of an inverted truncated cone and the shaped.

pressure member .14" is correspondingly heating and cooling chamber 1G', and the pressure'member. 14 is provided with a heating chamber 19 similar to those mentioned in connection with Fig. 2.

AIn practicing the process using the press shown `in Fig. 3, the convolutions 9 will. be

formed yin the shape of a cylinder, oneof whose endshas a smaller diameter than the other, 1n any convenient manner, as for ex ample by Winding the sheet 3 upon a man .drel having the shape of a tapered cylinder.

' The disks 10 toform the bottom of the receptacle and the convolutions 93 to form the sides thereof are placed in theopening .11', and after being heated sufiiciently to melt the waterproofing material the pressure member 14. is caused to descend and apply the proper amount of pressure. In this prcssthe descent of the pressure member 14 will cause the material constituting the convolutions to be pressed out\ vardly in a somewhat radial Idirection instead of causing the same to he compressed longitudinally, as indicated in Fig. 2. -The parts will be so proportioned that the bottom end of the pressure member 14-will come into contact with and compress the bottom disks 10 at the moment when sufiicient densiiica-v tion of the convolutions 9-3 has taken place. It is obvious that by having the opening V11l of sufiiciently small diameter to prevent the convolutions 93-from reaching the bottom pressure o r densification is caused to take place, thus rendering it less likelyv that any 465 of the fibers will be torn apart or greatly of the opening 11 before pressureis ape plied, the convolutions can be made to slide4 downwardly .so that there is substantiallythe same decrease inthe outsidediameter of the convolutions 93 as there iszincrease in the inside diameter of the same, While the The base 12 is p rovided with awhole will not be compressed in a directionlongitudinally of the lengthl of the fibers on thethemselves. Also, the receptacle when com-. I

pleted will have vthe fibers in the sides thereof lying' `in circumferential paths and those in the bottom thereof lying parallel to the bottom, so that moisture is less likely to penetrate the receptacle, as the fibersare not' parallelto the path that the moisture would take in passing through the'bottom or sides of the receptacle.

vInstead of uniting the botto-m to the convolutions, as above described, ltheconvolutions themselves-may be compressed -to densify and unite the same, .thus forming a ri'id conduit in which the fibers are nearly all lying in circumferential lines.

Instead 'of making the convolutions circular and making the bottom of the receptacle in the s'hapeof disks, I- may make the convolutions of other shapes, such'. as square or rectilinear, etc., andthe cut-out portions' of thesheet to form the bottom of the receptacle will be correspondingly shaped.

v Pitch has been found to be avery con-' venient andsuitable material to use asthe l `Waterproofing material, and pitch of a melting point of about 250 F. Ato1300o F. to give a very rigid and strong product,'when the pitch isused in sufficient quantities so that the final product consists of from about 50% to 90% byv Weight of pitch. The application of the heat and pressure may lreduce thevolume f ofthe mixed fibrous and 'waterproovng material about one-'half its original volume, so that the density of the final product may be approximately the same as that of the Waterproofing material itself.

t In using the term receptacle lI do not' lntend to be restricted to a vessel havinga closed end, but intendv to includexconduit's andthe like and the termv is to be sov under# stood `in the specification and claims.

. I claim:

`1. The process which comprises forming'a receptacle from a sheet containing felted fibrous material'and waterproofing material 'izo in which a large percentage of said fibers extend in the same general direction, and pressing'l said receptacle in directions substantially perpendicular to said, fibers and substantially ceptacle. .v

2. The process which comprises forming parallel to the axis of .said re.-`

a receptacle from a sheety containing felted fibrous material and `comnnnuted. water-A proofingmaterial in which a large percentago of said fibersextend in the same generalv direction, and pressing said receptacle in directions substantially perpendicular to said fibers atsuch a temperature that said Waterproofing material is melted.

, f 3. The process whichj comprises forming a receptacle from a. sheet containing felted fibrous materialjand Waterproofing. material in which a large percentage of sald fibers extend in the same general direction, pressing said receptacle in-directions substantially perpendicular to said fibers at such a 4temperature that said Waterproofing mate. rial is melted and at such a p'ressure that'the' density' of the' receptaclebecoines substantially the same as that of said Waterproofing material. l

4. The process which comprises forming a i. sheet containing felted fibrous material and tacle from a plurality of layersfofsaid sheet and hot pressing the same in a direction perpendicular to said fibers.

6. The process which comprises forming receptacle from a sheet containing felted fibrousmaterial and pitch' in which a large percentage of said vfibers extendin the same j general dlrectlon, and presslng said receptacle in directions substantiallyl perpendicular to said fibers.

7.- A receptacle closed at one end,tl1e sides i 'of which are made of a'plurality of layers of mixed fibrous and bituminous materials which have been united by heat `and pres-l sure. l

8. A receptacle closed atone end, the sides of which are made of av plurality of layers of mixed'fibrous andv bituminous materials which have been united by heat and by pressure applied in an axial direction, said fibers` tlons. l 9. A'receptacle closed at one. end, the sidesv ot'which are 'made of a `plurality of. layers of mixedfibrous and bituminous materials,

which have been united by heat and by pressure applied in an axial direction, s'aid fibers lying mainly in planes at right angles to .the axis of said receptacle.-

10. A receptacle closed at one end, the

sides' of which are'made of a' plurality of sheets of mixed fibrous material and com- 'lying generally in circumferential direcminuted pitch which` have been united by heat and by pressure applied in a substantially axial direction.

In testimony whereof I afiix lily-signature. RAY P. PERRY. 

